要配置Weblogic8.1的缺省應用，需要爲相應的Web Application的WEB-INF目錄下加上相應的配置文件信息。
1、對於以ear形式發佈的web application,在application.xml中加入：
<web>
<web-uri>yourAppName</web-uri>
<context-root>/</context-root>
</web>
2、對於以目錄形式發佈的web application,可以在weblogic.xml裏面配置：
<!DOCTYPEweblogic-web-appPUBLIC
"-//BEA Systems, Inc.//DTD Web
Application8.1//EN""http://www.bea.com/servers/wls810/dtd/weblogic810-web-jar.dtd">
<weblogic-web-app>
<container-descriptor>
<index-directory-enabled>true</index-directory-enabled>
</container-descriptor>
<context-root>/</context-root>
</weblogic-web-app>
注 意：application.xml裏面的配置將會覆蓋掉weblogic.xml的配置信息(Note thattheapplication.xml context-root takes precedent over theweblogic.xmlvalue.)
bea關於default web application的說明：
http://e-docs.bea.com/wls/docs81/ConsoleHelp/web_applications.html
Designating a Default Web Application
Thedefault Web Application is presented to clients who do notspecify a URI(or specify "/" as the URI). To deploy a Web Applicationas a defaultWeb Application, set the value of the context-root elementto "/" in itsdeployment descriptor.
You can specify the context-root elementin the weblogic.xmldeployment descriptor for Web Applications that arepackaged as a .wararchive or exploded .war directory. If you packagethe Web Applicationas part of an Enterprise Application (.ear archiveor exploded .ear),specify the context-root in application.xml. Notethat theapplication.xml context-root takes precedent over theweblogic.xmlvalue.
Deploy the application using the instructions in Deploying a New Web Application.
To deploy a Web Application as part of an .ear archive or exploded .ear, see Deploying WebLogic Server Applications.